Blood pressure 143/84mmHg is higher than normal, if the retest blood pressure is not high may be the normal fluctuation of blood pressure, if the retest three times and above is still high, then it is high blood pressure need to pay attention. 1. The systolic blood pressure of normal blood pressure should be <140mmHg and diastolic blood pressure <90mmHg, and the blood pressure of 143/84mmHg is higher than normal. 2. Systolic blood pressure ≥140mmHg and/or diastolic blood pressure ≥90mmHg in three retests not on the same day can be diagnosed as hypertension, if the systolic blood pressure ≥140mmHg and diastolic blood pressure ＜90mmHg, then it is pure systolic hypertension. 3. The blood pressure of 143/84mmHg is a single measurement of blood pressure and needs to be retested. If the systolic blood pressure is still higher than normal, it can be diagnosed as high blood pressure, which needs to be treated by doctor, improvement of life habits, or even taking antihypertensive drugs such as metoprolol; if the re-tested blood pressure is normal, the higher-than-normal value may be due to physiological fluctuation of blood pressure, which is a normal situation. 4. It is recommended that the patient should repeat the blood pressure test and determine whether the blood pressure is normal according to the repeated blood pressure, if the blood pressure is abnormal, the patient should consult the doctor in time for treatment.